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Beam Expanders

Safeguard the ti-Series laser on your production line with extra protection from dirt, dust and processing vapors with a Synrad BE-300, BE-400 or BE-500 beam expander.

Small, lightweight and easy-to-install, our BE-Series Beam Expanders expand and collimate the beam diameter of your laser's output by 3x, 4x or 5x, to reduce or eliminate damaging hot-spots and optics damage that can sometimes occur in harsh operating environments.

Ruggedly constructed from a single aluminum block and anodized for added corrosion resistance, BE Beam Expanders conveniently and easily mount to the front of ti-Series lasers via slotted holes on the input face for maximum adjustability and perfect alignment. O-ring gaskets on both ends of the unit ensure a snug fit and fully airtight seal between the expander and the laser, and between the expander and any other optical components mounted to the threaded 8-32 UNC holes on the output face of the expander.

The interiors of BE-Series Beam Expanders are fully shielded from the operating environment, and conform to IP6 standards. Two ZnSe Galilean telescopic lenses ensure maximum transmission of laser power.

Model BE-300 BE-400 BE-500
Expansion Ratio 3x 4x 5x
Clear Aperture 14 mm (0.551") 14 mm (0.551") 14 mm (0.551")
Cooling Air Air Air
Optical Transmission > 99% > 99% > 99%
Optical Attenuation < 1% < 1% < 1%
Available Wavelengths 9.3 µm, 10.6 µm 9.3 µm, 10.6 µm 9.3 µm, 10.6 µm
Dimensions (in) 2.126 x 1.750 x 2.165 2.126 x 1.750 x 2.375 2.126 x 1.750 x 2.460
Dimensions (mm) 54.0 x 44.5 x 55.0 54.0 x 44.5 x 60.3 54.0 x 44.5 x 62.5
Weight 213 g TBD 238 g
Mounting 8-32 cap screw 8-32 cap screw 8-32 cap screw
Data Sheet Click here to download Click here to download Click here to download
Technical Drawing Click here to download Click here to download Click here to download

Beam specifications measured at 1/e2.

Synrad Accessories Spec Tables Beam Expanders

Data Sheets




To purchase the Beam Expander, please contact a Synrad Sales Manager.

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